Auto Power Off - TechGrow HS-1 Manuel

AUTO POWER OFF

The HS-1 will be deactivated automatically after
20 minutes of no activity. To disable this func-
tion, press "SET" and "HOLD" simultaneously
for 2 seconds to reactivate the HS-1, until "n"
appears on the display. NOTE: the Auto sleep
function will be stopped during the calibration
mode
SETUP
Press "SET" in normal mode for more than 1
second to access the setup mode. To exit the
setup mode, press "CAL/Esc" in P1.0 or P3.0
and the HS-1 will return to normal mode.
P1.0 CO ALARM
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In the setup mode, "P1.0" and "AL" are shown
on the LCD display.
Press "MODE" to increase the value or press
DP/WBT te decrease value. With every push
on these buttons, the alarm will be increased or
decreased with 100 ppm from 100 to 9900 ppm.
When the desired alarm value is set, press
"Mnx /AV" to save or press "CAL/Esc" to return
to "P1.0" saving all settings.
P3.0 TEMPERATURE SCALE
( °C OR °F )
Press "MODE" or "DP/WBT" in "P1.0" to enter
"P3.0" to adjust the temperature scale. Press
"Mnx/AV" in front of "P3.1" with the blinking °C
bottom left of the LCD display (to switch be-
tween °C or °F, press "MODE" or "DP/WBT").
Next, press "Mnx/AV" to save or press "CAL/
Esc" to return to "P3.0" without saving any set-
tings.
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HS-1
user manual
CO2 CALIBRATION
The meter is calibrated at 400ppm at the facto-
ry.
Only calibrate the sensor if you suspect a devi-
ation. Our experience has shown that the Sen-
seAir® sensors that we use can function for two
years without calibration, easily.
The sensors are calibrated at the factory with
the highest accuracy, but it may occur that after
one year the sensor shows a deviation and has
to be calibrated again.
WARNING:
Do NOT calibrate the meter in an area of which
the CO2 value is unknown. Otherwise, the me-
ter will be calibrated automatically as 400ppm,
which will lead to inaccurate measurements. It
is advised to conduct a manual calibration in
outdoor air when the weather is sunny.
+Place the HS-1 on the calibration site.
+Activate the HS-1 and press "CAL/Esc" and
"MODE" simultaneously to enter the CO2 cali-
bration menu.
+400ppm and "CAL" are now blinking on the
LCD display while the calibration is busy.
+Wait for 5 minutes until the blinking stops and
the calibration is fi nished and returns to normal
mode.
To stop the calibration, you can deactivate the
HS-1 at any moment. NOTE: make sure that the
batteries are full during calibration to prevent
interruption or failed calibration.
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